Fluid separator



Feb. 3, 1942. J. E k 2,271,634

FLUID SEPARATOR Filed Aug. 30, 1939 mvmons James fieLc/zef BY frneszCarl Huge ATTO l ustrative separator in connection with Patented Feb. 3,1942 2,271,634 FLUID SEPARATOR.

James Fletcher, Akron, and Ernest Carl Barber-ton, 0111 of New Jersey 9,assignors to The Babcock & Wilcox Company, Newark,

N. J., a corporation Application August 30, 1939, Serial No. 292,642

6 Claims.

This invention relates to means for separating fluids of diflerentdensities, and it is more particularly concerned with centrifugal meansfor separating water from steam.

One embodiment of the invention involves a substantially circular whirlchamber into which a stream of steam and water mixture is dis charged soas to set up a whirling motion within the chamber. As a consequence, thesteam is separated from the water and passes from the chamber through anupper outlet while the water is discharged through a separate outlet. Anobto provide means for maintaining the steam outlet relatively free ofwater and to deflect the away from the steam outlet and toward the wateroutlet.

The invention contemplates the use 01' the iiand still supply dry steam.

Other objects of the invention will appear as the following descriptionproceeds.

The invention will be described with reference to an embodiment which isillustrated in the accompanying drawing.

In the drawing:

Fig. l is a diagrammatic view in the nature of a vertical sectionshowing a steam generator in 'hich the invention is emplayed;

Fig. 2 is a detail view in the nature of a vertical transverse sectionthrough the steam and water drum of the Fig. 1 installation;

. Fig. 3 is a vertical section through the illustrative whirl chamber;and

Fig. Fig. 3. a

The illustrative separator includes a substantially circular may bedischarged substantially the chamber.

Steam is separated -from the water within the whirl tangential. intoincoming fluid mixture v 4 is a horizontal section on the line 4 4 or Vchamber.

in Fig. 2 of the drawing,

chamberis provided with a cap or ring around the steam outlet. Thisstructure includes the circular flange 24 integral with and dependingfrom an annular portion 26 which closes the space between the flange andthe top oi the whirl chamber proper.

It will be seen from an inspection of Figs.

ment is such that the inlet communicates directly with thecircumferential space between V the steam outlet flange 24 and the wallof the whirl To prevent this space from being flooded and to minimizethe passage .0! water through the outlet It to the scrubber l6 means areprovided for increasing the downward component of the incoming stream ofsteam and water mixture. This means includes the segmental plate 30which is formed with the angularly related outlet edges 32 and 34 asindicated in Fig. 3. The plate 30 Joins the metal 0! the whirl chamberIn in the upright junction 36 as indicated in Fig. 3, and the upper part0! this plate is preferably of the same curvature as the steam outletflange 34 so that the plate may be secured, as by welding or brazing, tothe lower edge of this flange.

. The segmental outlet vanes 20 .and 22 are secured in an annularpassage between the upright wall of a pan 42 and the wallot the whirlchamber, as indicated in Figs. 3 and 4.

A number of the separators may be secured within the steam and waterdrum as indicated and for this purpose the steam and water mixture inletstructure 12' is provided with a heavy flange ilfor securement to asimilarly formed flange 5i fixed to the wall 58 ofa drum chamber 58. L

Steam and water mixtures are discharged into the drum chamber 58 by thecirculating connections 50-63, and water from the separators it! passesdownwardly from the drum 50 through the downcomers l0 and 12. Steam fromthe separator l0 passes from the drum through the steam ofitakeconnections 74 to a superheater 16 which is shown in Fig. 1 as twoparallel gas passes 78 and B0.

The boiler furnace 82 is fired by burners 84 and disposed in one of 88,and Iurnace gases pass from the furnace 82 with an inlet through which asteam and water into a furnace chamber 88. From this chamber mixture isdischarged into the chamber so as to the gases pass across a. bank ofsteam generating set up a whirling motion therein, means at the tubes 88to the parallel gas passes I8 and all. In upper end of the whirl chamberiorming a steam the gas pass I8 there is an economizer section 6 outletcentrally positioned with respect to the 82 series connected to a secondeconomizer secchamber. mean form n an Outlet Separated tion at throughwhich ieedwater is assed to the water at t e bottom t w l a b and drumn, a segmental plate fixed to a wall of said chamber The downcomers and12 are connected with and extending downward y from the steam outthedowntake header construction 88 for the 10 let n for with a downwardlyreceding and bank of tubes 98 and the uptake header construerearwardiyinclined forward edge which is e1- tlon at the opposite nd r this b n ftubes fective to increase the downward component of commimicates withthe circulatory connections the 111001111118 Steam and Water mixture.Said plate 60-68 by means or the risers I00 and the horimeans iormineone w ll 0! the inlet. zontal circulatorg log-m4, l5 4. In apparatus 0!the class described, means In compliance with the Federal statutes rer ia irl hamber having an inlet throllfl lating to such matters, andparticularly see. 4888 which ifl mix ur i discharged so as to set R. 8.,this invention has been concisely described D a whirling motion i h nthe h b r. means with reierence to one particular embodiment fl Whirlchamber Outlet r Separated thereof, 11;. however t be understood thatfluid 0! greater density, said outlet being oiIset the invention is notlimited to all oi the details from the inlet axially e! h whirl ha ber.n thereof. It is rather to be taken as of a scope means lowing a e o etf r a fluid or commensurate with the scope or the sub-joined lesserdensitys central outlet bein disposed claims, so that the inlet isoperatively positioned between we clam: said outlets, said inlet meansincluding a wall 1. In apparatus or the class described, means hum! a"mum? and dwnwardly recedml forming a whirl chamber having an inletthrough Ward edge give the incomin! mixture In which a mixture or fluidsor diflerent densities is increased wmronent toward the first mentionedadmitted so as to set up a whirling motion within outletthe chamber,means iorming an outlet tor a fluid In apparatus the class dammed mean!of greater density, said outlet being spaced from chamber having aninlet thrown the inlet in a direction axially oi the whirl chamwmch 5fluid mixture is discharged as to her, and means iorming a centraloutlet for a up a whining motion mm the chambermews liuid oi lesserdensity adjacent said inlet, said whirl chdmber outlet 5 inlet meansincluding a wall extending from the mud or steam density' being centraloutlet toward the outlet for the fluid of the axially of the whirlchamber and higher density and formed with a rearwardly ini g' g fluidciined edge receding from the central outlet so as mm m outlet hemdispwed m we the incoming stream an increased so that the inietisoperatively positioned between ponent toward the first mentioned outlet,said L fi g s a includmg 3: edge being oblique to the axis of the whirla re at an Ownwamu race 8 chambe1. outlet edge to give the incomingmixture an in- 2. In a steam and water separator, "leans creasedcomponent toward the first mentioned forming an upright whirl chamber,means secured outlet to the whirl chamber and forming therewith an I gapparatus g classvgmflbed' means inlet through which a steam and watermixture g wmn mber ha a an meant! is discharged into the chamber so asto set up a ed a Wk which ahflmd mixture is whirling motion therein,means at the upper end i "2, to set up w mm: motion within 0! the whirlchamber forming a steam outlet e means a whirl chamber centrallypositioned with respect to the chamoutlet a separated fluid greaterdensity ber, means iorming an outlet tor separated water 10mm $2 Sena,at the bottom of the whirl chamber, and plate g means extendingdownwardly from the steam ophqomwly set mm t inlet or the outlet andformed with a rearwardly inclined w u z am the male hem! and downwardlyreceding edge which is eflective zg the i a :2: to increase the downwardcomponent oi the i nan 8 g; mm coming steam and water mixture, saidplate side a smallest "mtudm em on means forming one wall of the inlet.toward the first mentmned 8. In a steam and water separator, meansiorming an upright whirl chamber, means segg gb cured to the whirlchamber and forming there-

